Constraining the global CH4 budget with high-quality measurements of CH4 and its stable carbon isotopes

Xin Lan1,2, Sourish Basu3,4, Sylvia Michel5, Youmi Oh1, Lori Bruhwiler6, Kirk W Thoning2 and Edward J Dlugokencky6, (1)University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (2)NOAA, Global Monitoring Laboratory, Boulder, CO, United States, (3)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, United States, (4)University of Maryland College Park, College Park, United States, (5)University of Colorado Boulder, Institute of Arctic and Alpine Research, Boulder, United States, (6)NOAA, Global Monitoring Laboratory, Boulder, United States